On average, listings lease in the $20's per square foot per year. The Harrison County region is seeing a a rise in rates. In the last 3 months, the median rate rose $23 per sqft per year. That's a Inf% rise in rent.
In the last 90 days, 2 listings have been listed, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,450 sqft. Most buildings in this market were built in 1998 and are Class B.